Apparatus

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sensors Mode-S transponder

801631

ICAO 24-bit transponder address · allocated to India

Currently assigned to VT-IRL · ATR-72-600

Hex
801631
Octal
40013061
Decimal
8,394,289
Country
IN
Tail
VT-IRL
Type
AT76
No current signal · last broadcast 9d ago
Flights observed
258
Distinct callsigns
20
Country
IN
Last broadcast
9d ago

Last known position

Most recent position reported by Mode-S 801631.

Country allocation

The ICAO 24-bit address 801631 falls within the block assigned to India (IN) by ICAO Annex 10, Volume III. Every aircraft registered in India receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 20 distinct

Callsign Airline Flights Last seen
IGO7516 IndiGo Airlines 12 2026-05-24
IGO7413 IndiGo Airlines 10 2026-06-09
IGO6PV - 10 2026-06-09
IGO7517 IndiGo Airlines 9 2026-05-24
IGO7719 IndiGo Airlines 7 2026-05-21
IGO4YE - 7 2026-05-21
IGO7074 IndiGo Airlines 5 2026-05-07
IGO7251 - 4 2026-06-22
IGO7075 IndiGo Airlines 4 2026-05-07
IGO7027 IndiGo Airlines 4 2026-06-12
IGO7023 - 4 2026-06-04
IGO7021 - 4 2026-06-04
IGO6EW - 4 2026-05-17
IGO5EP - 4 2026-05-17
IGO5AP - 4 2026-06-12
IGO1JY - 4 2026-06-04
IGO1FD - 4 2026-06-04
IGO8CH - 3 2026-06-22
IGO7VH - 3 2026-06-22
IGO7HC - 3 2026-07-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-05 IGO7864 - Jul 5, 05:45 UTCJul 5, 06:00 UTC15m
2026-07-04 IGO7133 - Jul 4, 17:00 UTCJul 4, 17:20 UTC20m
2026-07-04 IGO7134 - Jul 4, 13:55 UTCJul 4, 14:10 UTC15m
2026-07-04 IGO4HC - Jul 4, 08:45 UTCJul 4, 08:55 UTC10m
2026-07-04 IGO2CY - Jul 4, 05:40 UTCJul 4, 05:50 UTC10m
2026-07-02 IGO7736 - Jul 2, 10:40 UTCJul 2, 11:15 UTC35m
2026-07-02 IGO7HC - Jul 2, 08:05 UTCJul 2, 08:40 UTC35m
2026-07-02 IGO7203 - Jul 2, 06:55 UTCJul 2, 07:10 UTC15m
2026-07-02 IGO7CW - Jul 2, 04:00 UTCJul 2, 04:20 UTC20m
2026-06-30 IGO7133 - Jun 30, 17:30 UTCJun 30, 17:45 UTC15m
2026-06-30 IGO7134 - Jun 30, 14:30 UTCJun 30, 14:45 UTC15m
2026-06-30 IGO8WT - Jun 30, 12:55 UTCJun 30, 13:25 UTC30m
2026-06-30 IGO7407 - Jun 30, 11:15 UTCJun 30, 11:50 UTC35m
2026-06-30 IGO7737 - Jun 30, 08:00 UTCJun 30, 08:15 UTC15m
2026-06-30 IGO7233 - Jun 30, 03:10 UTCJun 30, 03:45 UTC35m
2026-06-30 IGO7227 - Jun 30, 01:04 UTCJun 30, 01:30 UTC26m
2026-06-29 IGO5YT - Jun 29, 15:49 UTCJun 29, 16:15 UTC25m
2026-06-29 IGO7162 - Jun 29, 10:24 UTCJun 29, 10:44 UTC20m
2026-06-29 IGO9AW - Jun 29, 08:39 UTCJun 29, 09:14 UTC35m
2026-06-28 IGO7923 - Jun 28, 07:34 UTCJun 28, 08:05 UTC30m
2026-06-28 IGO7919 - Jun 28, 06:10 UTCJun 28, 06:24 UTC15m
2026-06-23 IGO7064 - Jun 23, 07:35 UTCJun 23, 07:45 UTC10m
2026-06-22 IGO8CH - Jun 22, 12:40 UTCJun 22, 13:25 UTC45m
2026-06-22 IGO7251 - Jun 22, 10:34 UTCJun 22, 11:19 UTC45m
2026-06-22 IGO7VH - Jun 22, 08:54 UTCJun 22, 09:34 UTC40m
2026-06-22 IGO7419 - Jun 22, 03:10 UTCJun 22, 04:00 UTC50m
2026-06-22 IGO5MA - Jun 22, 01:35 UTCJun 22, 02:25 UTC50m
2026-06-21 IGO2WJ - Jun 21, 14:19 UTCJun 21, 15:15 UTC55m
2026-06-21 IGO7FP - Jun 21, 12:19 UTCJun 21, 13:20 UTC1h 0m
2026-06-21 IGO7251 - Jun 21, 10:40 UTCJun 21, 11:24 UTC45m
2026-06-21 IGO7VH - Jun 21, 09:10 UTCJun 21, 09:55 UTC45m
2026-06-21 IGO7419 - Jun 21, 03:10 UTCJun 21, 03:59 UTC50m
2026-06-21 IGO5MA - Jun 21, 01:35 UTCJun 21, 02:24 UTC50m
2026-06-20 IGO7216 - Jun 20, 16:24 UTCJun 20, 17:19 UTC55m
2026-06-20 IGO8CH - Jun 20, 12:45 UTCJun 20, 13:34 UTC50m
2026-06-20 IGO7251 - Jun 20, 10:59 UTCJun 20, 11:59 UTC1h 0m
2026-06-20 IGO7VH - Jun 20, 08:49 UTCJun 20, 09:29 UTC40m
2026-06-20 IGO7925 - Jun 20, 06:35 UTCJun 20, 07:14 UTC40m
2026-06-20 IGO6HC - Jun 20, 04:29 UTCJun 20, 05:14 UTC45m
2026-06-20 IGO7419 - Jun 20, 02:54 UTCJun 20, 03:49 UTC55m
2026-06-20 IGO5MA CCU → IXA Jun 20, 01:19 UTCJun 20, 02:09 UTC50m
2026-06-19 IGO7309 - Jun 19, 10:39 UTCJun 19, 11:39 UTC1h 0m
2026-06-19 IGO7304 - Jun 19, 06:14 UTCJun 19, 07:25 UTC1h 10m
2026-06-19 IGO7562 - Jun 19, 03:20 UTCJun 19, 04:50 UTC1h 30m
2026-06-19 IGO7561 - Jun 19, 01:34 UTCJun 19, 02:19 UTC45m
2026-06-18 IGO7216 - Jun 18, 16:15 UTCJun 18, 17:21 UTC1h 6m
2026-06-18 IGO8CH - Jun 18, 12:45 UTCJun 18, 13:35 UTC50m
2026-06-17 IGO7251 - Jun 17, 10:45 UTCJun 17, 11:15 UTC30m
2026-06-17 IGO7925 - Jun 17, 06:55 UTCJun 17, 07:10 UTC15m
2026-06-17 IGO6HC - Jun 17, 04:55 UTCJun 17, 05:20 UTC25m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Prefer a tail-number view? See the VT-IRL page for operator, model, and routing details .

Mode-S 801631 frequently asked

What is Mode-S code 801631?
801631 is an ICAO 24-bit transponder address. Allocated to India. Assigned to VT-IRL.
Where is Mode-S 801631 registered?
Mode-S code 801631 is allocated to India (IN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 801631 broadcasting right now?
No active broadcast right now. Last signal was 9d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 801631, octal 40013061, decimal 8,394,289.
What flights does 801631 operate?
Mode-S 801631 has broadcast 20 distinct callsigns, including IGO7516, IGO7413, IGO6PV, IGO7517, IGO7719.